feat: AI 打字机流式输出、小程序脚本主页布局及灵感卡片优化

- life-script: 新增 aiRuntime 打字机流式服务，PathView/ScriptView/TimelineView 接入打字机效果
- mini-program: ScriptView 重构为打字机输出 + 卡片式灵感列表，主页布局优化
- web: aiRuntime 服务新增流式输出支持
- chat store: 消息状态管理和打字机流式渲染支持

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

mini-program/src/pages/login/index.vue

@@ -142,7 +142,7 @@ const handleLogin = async () => {
 
     if (result.success) {
       if (result.hasProfile) {
-        uni.redirectTo({ url: '/pages/main/index' })
+        uni.redirectTo({ url: '/pages/main/index?tab=script' })
       } else {
         uni.redirectTo({ url: '/pages/onboarding/index' })
       }